CN102454850B - By the end connector of the bellows of co-molded production - Google Patents
By the end connector of the bellows of co-molded production Download PDFInfo
- Publication number
- CN102454850B CN102454850B CN201110329050.0A CN201110329050A CN102454850B CN 102454850 B CN102454850 B CN 102454850B CN 201110329050 A CN201110329050 A CN 201110329050A CN 102454850 B CN102454850 B CN 102454850B
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- China
- Prior art keywords
- bellows
- tubular insert
- bar portion
- joining portion
- joint
- Prior art date
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Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000005304 joining Methods 0.000 claims description 40
- 239000013013 elastic material Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14598—Coating tubular articles
- B29C45/14614—Joining tubular articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0036—Joints for corrugated pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms And Bellows (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Describe a kind of end connector of the bellows be made up of plastic material.This connector comprises: tubular elastomeric body, it is by the end that is co-molded to bellows produces, wherein, this elastic body is made up of joint and fixing part, this joint is arranged on the outside of bellows and is shaped as being connected to external component, and this fixing part is arranged on the inner side of bellows to fill the groove of its bellows wall; And tubular insert, it is made up of plastic material and part is combined in elastic body, and this tubular insert comprises bar portion and lip part, this bar portion extends in bellows, the end abutment of this lip part and bellows, this bar portion comprises the fixed area being provided with crosspassage, and in the region of this fixed area, the bar portion of plug-in unit attaches to bellows by means of the fixing part of elastic body.
Description
Technical field
The present invention relates to a kind of end connector of the bellows be made up of plastic material, this end connector comprises:
Tubular elastomeric body, this tubular elastomeric body co-molded (co-mould) is on the end of bellows, wherein, this elastic body is made up of joint and fixing part, this joint is arranged on the outside of bellows and is shaped as being connected to external component, and this fixing part is arranged on bellows to fill the groove of the bellows wall of this bellows; And
Tubular insert, this tubular insert is made up of plastic material and part is combined in elastic body, and this tubular insert comprises bar portion and lip part, this bar portion extends in bellows, the end abutment of this lip part and bellows, this bar portion comprises fixed area, and in the region of this fixed area, the bar portion of plug-in unit attaches to bellows by means of the fixing part of elastic body.
Background technique
Bellows is used in production of such as vehicle front and rear windshield purging system etc., and be used for making the such as pump of this system, the multiple parts of nozzle and fuel tank and so on are interconnected.
EP2112415 discloses this kind of end connector above-mentioned.This end connector is shown in Fig. 1 to 6, has been described referring now to Fig. 1 to 6.
These accompanying drawings generally illustrate to be made up of plastic material and to be typically expressed as the end sections of the bellows of 1.Pipe 1 comprises bellows wall 2, and this bellows wall 2 limits and arranges in succession and multiple annular grooves 3 of inside towards pipe along this pipe.
In the region of the end 4 of the pipe in the accompanying drawings, exist be suitable for pipe 1 to be connected to external component (not shown) be typically expressed as 10 end connector.This end connector 10 comprises tubular elastomeric body 11, and this tubular elastomeric body 11 is made by the end 4 that elastic material is co-molded to bellows 1.
Elastic body 11 is made up of joint 12 and fixing part 13, and this joint 12 is arranged on the outside of bellows 1, and this fixing part 13 is arranged on the inner side of bellows 1 to fill some grooves 3 of the bellows wall 2 of this bellows 1.Joint 12 has internal pipeline 14, and this internal pipeline 14 is shaped as and is connected for the vacuum seal between connector 10 with external component above-mentioned.According to the profile of pipe 1 by connection external component thereon, determine the profile of this internal pipeline 14 in the design phase.The external diameter of joint 12 is advantageously identical with the external diameter of bellows 1 to produce the identical element of transverse dimension, avoids any dimensional interference in the region must passed between its installation period at pipe thus.
End connector 10 also comprises tubular insert 15, and this tubular insert 15 is made up of plastic material and part is attached in elastic body 11.Plug-in unit 15 comprises bar portion 16 and flange or adjacent portion 17, and this bar portion 16 extends in the inner side of bellows 1, and this flange or adjacent portion 17 are arranged on an end in bar portion 16 and adjoin with the end 4 of bellows 1.Concrete reference illustrates separately Fig. 5 of plug-in unit 15, can see that the bar portion 16 of plug-in unit comprises proximal end region 16a and distal area 16b.In the region of proximal end region 16a being defined as fixed area below, the sidewall in bar portion 16 has crosspassage towards the internal pipeline 16d of plug-in unit 15 or hole 16c.As can be seen in fig. 2, the internal pipeline 16d of plug-in unit 15 expands slightly.Be defined as in the region of distal area 16b of seal area below in the bar portion 16 of plug-in unit 15, the transverse wall in bar portion 16 is continuous print substantially, that is, do not have transverse opening.Plug-in unit 15 is integrally arranged in pipe 1 to make the sidewall in bar portion 16 substantially contact with the wall 2 of bellows 1.In the 16b of seal area, the whole circumference of the cross section of the transverse wall in this Contact Effect bar portion 16.Thus, the groove 3 (in a vacuum tight manner) in the 16b of seal area of the wall 2 of pipe 1 is mutually isolated to be opened, and in the 16a of fixed area, groove 3 is interconnected (connection) by means of crosspassage 16c and is connected to the internal pipeline 16d of plug-in unit 15.As can be clearly seen in Figure 5, crosspassage 16c also extends through the adjacent portion 17 of plug-in unit 15.As shown in Figure 4, the fixing part 13 of elastic body 11 extends to occupy crosspassage 16c from the joint 12 of body 11 and fills the groove 3 be communicated with passage 16c of the bellows wall 2 of bellows 1, thus ends at the position of the distal area 16b in the bar portion 16 of plug-in unit 15.In the region of fixed area 16a, the transverse wall in bar portion 16 becomes a series of bridge members of seal area 16b lip part 17 being attached to bar 16.
In the 16a of fixed area, therefore the bar portion 16 of plug-in unit 15 attaches to bellows 1 by means of the fixing part 13 of elastic body 11.This attachment is fixed by machinery and is fixedly obtained by chemistry, this machinery is fixing utilizes sinking of being limited by the groove 3 of the bellows wall 2 of pipe 1, the fixing material by the selection material of pipe 1, the material of elastic body 11 and plug-in unit 15 of this chemistry to realize pipe 1, chemical attachment between elastic body 11 and plug-in unit 15.Thus, elastic material and pipe 1 and plug-in unit 15 form one.
Fig. 6 shows elastic body 11 and how can be co-molded on the end 4 of pipe 1.For this reason, use comprises the mould of aciculiform interior section IM and exterior section EM (schematically showing with dotted line), this aciculiform interior section IM can be partly inserted in bellows 1, and this exterior section EM can as housings close around the end 4 of pipe 1.Interior section IM comprises proximal section IM1 and distal section IM2, the lateral surfaces of this proximal section IM1 is shaped as the internal pipeline 14 of the joint 12 required profile being given elastic body 11, this distal section IM2 can be bonded on the inner side of the seal area 16b in the bar portion 16 of plug-in unit 15, closes the internal pipeline 16d of plug-in unit 15 thus in a vacuum tight manner.On the other hand, the exterior section EM of mould is shaped as the outer surface of the joint 12 required profile being given elastic body 11.
Substantially, the manufacture of end connector 10 comprises and being first inserted in bellows 1 by plug-in unit 15, until the lip part 17 of plug-in unit 15 adjoins with the end 4 of pipe 1.Subsequently, the interior section IM of mould is inserted in bellows 1, until the distal section IM2 of interior section IM engages with the seal area 16b in the bar portion 16 of plug-in unit 15, and around the end 4 exterior section EM of mould being enclosed in pipe.Subsequently, elastic material is injected in a conventional manner between the exterior section EM of mould and interior section IM, and this elastic material also by extend through the partial penetration of the crosspassage 16c of the lip part 17 of plug-in unit 15 in the inside of bellows 1, fill the groove 3 of crosspassage 16c and the bellows wall 2 be communicated with it thus.Rely on sealing S, stoped the infiltration of elastic material by the seal area 16b in the bar portion 16 of plug-in unit 15, sealing S is formed with the distal portion IM2 of the interior section IM of mould on side by seal area 16b, and is formed with the bellows wall 2 of bellows 1 on another side.
Summary of the invention
According to the present invention, provide this kind of end connector mentioned from the beginning, wherein, tubular insert also comprises joining portion, this joining portion extends from adjacent portion on the opposite side relative to bar portion, described joining portion is collar-shaped and is provided with the engagement tabs that side direction center extends in joining portion, and wherein, engagement tabs part reaches in the internal pipeline of the joint of tubular elastomeric body for being connected in described external component.
The preferred embodiment of the present invention limits in the dependent claims.
Another theme of the present invention is a kind of method manufacturing the end connector of bellows, and the method comprises the following steps:
The bellows be made up of plastic material is provided,
There is provided tubular insert, this tubular insert is made up of plastic material and is comprised bar portion, adjacent portion and joining portion, and this joining portion is provided with crosspassage,
There is provided mould, this mould can as the end perimeter of housings close at bellows,
There is provided resin injection device, this resin injection device has aciculiform structure and can partly be inserted in the joining portion of plug-in unit,
Be inserted in by tubular insert with the end abutment of the adjacent portion and bellows that make tubular insert in bellows, the bar portion of this plug-in unit contacts substantially with the bellows wall of bellows,
Resin injection device is inserted in the joining portion of plug-in unit, until the distal section of injection device is bonded in the distal area at the joining portion of plug-in unit, and around this mould of end-enclosed of bellows,
Inject elastic material by injection device, wherein, elastic material, through the crosspassage at the joining portion of plug-in unit, embeds plug-in unit and bellows thus,
Wherein, mould and injection device make remaining elastic material have predetermined profile, and to form internal pipeline and the outer surface of the joint of end connector respectively, this joint is arranged on the outside of bellows.
Accompanying drawing explanation
Now with reference to accompanying drawing, preferred but nonrestrictive mode of execution of the present invention is described, wherein:
Fig. 1 is the elevation of the bellows of the end connector be provided with according to prior art;
Fig. 2 is the sectional view of the pipe obtained on the line II-II of Fig. 1;
Fig. 3 is the elevation of pipe relative to the longitudinal axis 90-degree rotation of this pipe of Fig. 1;
Fig. 4 is the sectional view of the pipe obtained on the line IV-IV of Fig. 3;
Fig. 5 is the stereogram of the plug-in unit of the end connector of the pipe of Fig. 1;
Fig. 6 shows the schematic partial cross-sectional view of the manufacturing step of the end connector of the pipe of Fig. 1;
Fig. 7 is the elevation of the bellows of the end connector be provided with according to first embodiment of the invention;
Fig. 8 is the sectional view of the pipe obtained on the line VIII-VIII of Fig. 7;
Fig. 9 and 10 is stereograms of the plug-in unit of the end connector of the pipe of Fig. 7;
Figure 11 is the elevation of the bellows of the end connector be provided with second embodiment of the invention;
Figure 12 to 14 is the sectional view of the pipe that the line XIV-XIV of line XIII-XIII and Figure 13 of line XII-XII, Fig. 7 at Fig. 7 obtains respectively;
Figure 15 and 16 is stereograms of the plug-in unit of the end connector of the pipe of Figure 11; And
Figure 17 shows the schematic partial cross-sectional view of the manufacturing step of the end connector of the pipe of Figure 11.
Embodiment
Usually, accompanying drawing illustrates and sees and to be made up of plastic material and to be typically expressed as the end sections of the bellows of 1.Pipe 1 comprises bellows wall 2, and this bellows wall 2 limits and arranges in succession and multiple annular grooves 3 of inside towards pipe along this pipe.
Be described with reference to Fig. 7 to 10.In the region of the end 4 of the pipe in the accompanying drawings, exist be suitable for pipe 1 to be connected to external component (not shown) be typically expressed as 110 end connector.This end connector 110 comprises the tubular elastomeric body 111 that the end 4 by elastic material being co-molded to bellows 1 produces.
Elastic body 111 is made up of joint 112 and fixing part 113, this joint 112 is arranged on the outside of bellows 1, this fixing part 113 is arranged on bellows 1 and (in this embodiment, is arranged at least partly in this pipe) to fill some grooves 3 of its bellows wall 2.This joint 112 has internal pipeline 114, and this internal pipeline 114 is shaped as and is connected for the vacuum seal between connector 110 with external component above-mentioned.According to the profile of pipe 1 by connection external component thereon, determine the profile of internal pipeline 114 in the design phase.The external diameter of this joint 112 is advantageously identical with the external diameter of bellows 1 to produce the identical element of transverse dimension, avoids any dimensional interference in the region must passed between its installation period at pipe thus.
End connector 110 also comprises tubular insert 115, and this tubular insert 115 is made up of plastic material and is at least partially combined in elastic body 111.Plug-in unit 115 comprises bar portion 116 and adjacent portion 117, and this bar portion 116 extends in the inner side of bellows 1, and this adjacent portion 117 is arranged on an end in bar portion 116 and adjoins with the end 4 of bellows 1.Concrete reference illustrates separately Fig. 9 and 10 of plug-in unit 115, can see that the bar portion 116 of plug-in unit comprises proximal end region 116a and distal area 116b.In the region of proximal end region 116a being defined as fixed area below, the sidewall in bar portion 116 has crosspassage towards the internal pipeline 116d of plug-in unit 115 or hole 116c.The internal pipeline 116d of plug-in unit 115 can expand slightly.Be defined as below seal area plug-in unit 115 bar portion 116 distal area 116b region in, the transverse wall in bar portion 116 is continuous print substantially, that is, do not have transverse opening.Plug-in unit 115 is integrally arranged in pipe 1 to make the sidewall in bar portion 116 substantially contact with the wall 2 of bellows 1.In the 116b of seal area, the whole circumference of the cross section of the transverse wall in this Contact Effect bar portion 116.Thus, the groove 3 (in a vacuum tight manner) in the 116b of seal area of the wall 2 of pipe 1 is mutually isolated to be opened, and in the 116a of fixed area, groove 3 is interconnected (connection) by means of crosspassage 116c and is connected to the internal pipeline 116d of plug-in unit 115.As can be clear that in figures 9 and 10, crosspassage 116c also extends through the adjacent portion 117 of plug-in unit 115.As shown in Figure 8, the fixing part 113 of elastic body 111 extends to occupy crosspassage 116c at least partly and to fill at least one groove 3 be communicated with passage 116c of the bellows wall 2 of bellows 1 from the joint 112 of body 111, thus ends at the position of the distal area 116b in the bar portion 116 of plug-in unit 115 at the most.In addition, a part for fixing part 113 extends to surround at least one in the groove 3 of the bellows wall 2 of this pipe 1 from the outside of at least one groove 3 of the bellows wall 2 of pipe 1 from the joint 112 of elastic body 111.
Plug-in unit 115 also comprises joining portion 118, and this joining portion 118 extends from adjacent portion 117 on the opposite side relative to bar portion 116.The joining portion 118 of plug-in unit is collar-shaped and is provided with the engagement tabs 118a of such as tooth and so on, and this engagement tabs 118a extends from side direction center in joining portion 118.Engagement tabs 118a part reaches in the internal pipeline 114 of joint 112, is connected with the vacuum seal between external component above-mentioned for reinforcement connector 110.The sidewall at joining portion 118 has crosspassage or hole 118c, and this crosspassage or hole 118c are towards the inner chamber 118d alignd with internal pipeline 116d of plug-in unit 115.These passages 118c aligns for enabling this elastic material arrive them and permeating between tubular insert 115 and the bellows wall 2 of pipe 1 with the passage 116c in bar portion 116.In addition, the proximal end that otch 118e is formed in joining portion 118 has the elastic deformability of enhancing with those parts of the supporting engagement tabs 118a making joining portion 118.
In mode of execution shown in Fig. 7 to 10, in the region of fixed area 116a, the transverse wall in bar portion 116 becomes a series of bridge members of seal area 116b adjacent portion 117 being attached to bar 116.But, as long as guarantee the controlled infiltrating between tubular insert 115 and the bellows wall 2 of pipe 1 of elastic material, for purposes of the present invention, the given shape of the given shape of crosspassage 116c and 118c and the seal area 116b of insertion 115 is not requisite.
In the 116a of fixed area, therefore the bar portion 116 of plug-in unit 115 attaches to bellows 1 by means of the fixing part 113 of elastic body 111.This attachment is fixed by machinery and is fixedly obtained by chemistry, this machinery is fixing utilizes sinking of being limited by the groove 3 of the bellows wall 2 of pipe 1, the fixing material by the selection material of pipe 1, the material of elastic body 111 and plug-in unit 115 of this chemistry to realize pipe 1, chemical attachment between elastic body 111 and plug-in unit 115.Thus, elastic material and pipe 1 and plug-in unit 115 form one.
Elastic body 111 can be co-molded on the end 4 of pipe 1 in the mode that the mode of the elastic body 11 to Fig. 1 to 6 is similar.In order to its production method is described, the detailed description therefore with reference to Fig. 6 is described.
Now, be described with reference to Figure 11 to 17.In the region of the end 4 of the pipe in the accompanying drawings, exist be suitable for pipe 1 to be connected to external component (not shown) be typically expressed as 210 end connector.This end connector 210 is elbow and comprises tubular elastomeric body 211, and this tubular elastomeric body 211 is by the end 4 that elastic material is co-molded to bellows 1 produces.
Elastic body 211 is made up of joint 212 and fixing part 213, this joint 212 to be arranged on bellows 1 (in this embodiment, be arranged on the outside of pipe) on, this fixing part 213 is arranged to fill some exterior channels 3 of its bellows wall 2 around the end 4 of pipe 1.This joint 212 has internal pipeline 214, and this internal pipeline 214 is shaped as and is connected for the vacuum seal between connector 210 with external component above-mentioned.According to the profile by connecting external component thereon of pipe 1, determine the profile of this internal pipeline 214 in the design phase.The external diameter of this joint 212 is advantageously identical with the external diameter of bellows 1 to produce the identical element of transverse dimension, any dimensional interference thus in the region avoiding pipe must pass between its installation period.
End connector 210 also comprises tubular insert 215, and this tubular insert 215 is made up of plastic material and part is combined in elastic body 211.This plug-in unit 215 comprises tubular rod portion 216 and adjacent portion 217, and this tubular rod portion 216 extends in bellows 1, and this adjacent portion 217 is arranged at an end in bar portion 216 and adjoins with the end 4 of bellows 1.Concrete reference illustrates separately Figure 15 and 16 of plug-in unit 215, can see that the bar portion 216 being defined as seal area hereinafter of plug-in unit has transverse wall, and this transverse wall is continuous print substantially, that is, do not have transverse opening.The internal pipeline 216d of plug-in unit 215 can expand slightly.Plug-in unit 215 is integrally arranged in pipe 1 to make the sidewall in bar portion 216 substantially contact with the wall 2 of bellows 1.The whole circumference of the cross section of the transverse wall in this Contact Effect bar portion 216.Thus, the groove 3 (in a vacuum tight manner) contacted with bar portion of the wall 2 of pipe 1 is mutually isolated opens.As shown in Figure 12 to 14, the fixing part 213 of elastic body 211 extends to surround some grooves 3 of the bellows wall 2 of pipe 1 from the outside of the groove 3 of the bellows wall 2 of pipe 1 from the joint 212 of body 211.
Plug-in unit 215 also comprises joining portion 218, and this joining portion 218 extends from adjacent portion 217 and relative to bar portion 216 at angle on the opposite side relative to bar portion 216.The joining portion 218 of plug-in unit is collar-shaped and is provided with the engagement tabs 218a of such as tooth and so on, and this engagement tabs 218a extends from side direction center in joining portion 218.Engagement tabs 218a part reaches in the internal pipeline 214 of joint 212, is connected with the vacuum seal between external component above-mentioned for reinforcement connector 210.The sidewall at joining portion 218 has crosspassage or hole 218c, this crosspassage or hole 218c towards plug-in unit 215 relative to internal pipeline 216d inner chamber 218d at angle.In addition, the proximal end that otch 218e is formed in joining portion 218 has the elastic deformability of enhancing with those parts of the supporting engagement tabs 218a making joining portion 218.
Therefore the bar portion 216 of plug-in unit 215 attaches to bellows 1 by means of the fixing part 213 of elastic body 211.This attachment is fixed by machinery and fixedly to be obtained by chemistry, this machinery is fixing utilizes sinking of being limited by the groove 3 of the bellows wall 2 of pipe 1, the fixing material by the selection material of pipe 1, the material of elastic body 211 and plug-in unit 215 of this chemistry to realize pipe 1, chemical attachment between elastic body 211 and plug-in unit 215.Thus, elastic material and pipe 1 and plug-in unit 215 form one.
Figure 17 shows elastic body 211 and how can be co-molded on the end 4 of pipe 1.This molding process requires to have the mould M of elbow cavity EC and aciculiform resin injection device ID, this mould M can as housings close around the ends 4 of pipe 1, and this injection device ID can partly be inserted in plug-in unit 215.This injection device ID comprises proximal section ID1 and distal section ID2, the lateral surfaces of this proximal section ID1 is shaped as the internal pipeline 214 of the joint 212 required profile being given elastic body 211, this distal section ID2 can be bonded in the joining portion 218 of plug-in unit 215, closes the internal cavities 218d of plug-in unit 215 thus in a vacuum tight manner.On the other hand, the cavity EC of mould is shaped as the outer surface of the joint 212 required profile being given elastic body 211.
Substantially, the manufacture of end connector 210 comprises and being first inserted in bellows 1 by plug-in unit 215, until the adjacent portion 217 of plug-in unit 215 adjoins with the end 4 of pipe 1.Subsequently, injection device ID is inserted in the internal cavities 218d at joining portion 218, and closes this mould around pipe 1, plug-in unit 215 and injection device ID.Subsequently, elastic material is injected through the transverse opening (not shown) of this injection device in a conventional manner, penetrate in the cavity EC of this mould through the crosspassage of the sidewall at joining portion 218 or hole 218c, thus the end 4 of this injection device ID, plug-in unit 215 and pipe 1 is embedded in mould self.Rely on sealing, prevent the infiltration of elastic material between the adjacent portion 217 and tube end 4 of plug-in unit 215 by the bar portion 216 of plug-in unit 215, sealing is formed by bar portion 216 and the bellows wall 2 of bellows 1.
Claims (4)
1. the end connector (110 of the bellows be made up of plastic material (1); 210), comprising:
Tubular elastomeric body (111; 211), described tubular elastomeric body (111; 211) be co-molded on the end (4) of described bellows (1), wherein, described elastic body is by joint (112; 212) and fixing part (113; 213) form, described joint (112; 212) be arranged on the outside of described bellows (1), and be shaped as being connected to external component, described fixing part (113; 213) described bellows (1) is arranged on upper to fill the groove of the bellows wall of described bellows, and
Tubular insert (115; 215), described tubular insert (115; 215) be made up of plastic material and be partly combined in described elastic body (111; 211) in, and described tubular insert (115; 215) bar portion (116 is comprised; 216) and adjacent portion (117; 217), described bar portion (116; 216) extend in described bellows, described adjacent portion (117; 217) adjoin with the described end (4) of described bellows (1), described bar portion (116; 216) fixed area (116a) is comprised, in the region of described fixed area, the described bar portion (116 of described tubular insert; 216) by means of the described fixing part (113 of described tubular elastomeric body; 213) described bellows (1) is attached to,
It is characterized in that, described tubular insert (115; 215) joining portion (118 is also comprised; 218), described joining portion (118; 218) relative to described bar portion (116; 216) from described adjacent portion (117 on opposite side; 217) extend, described joining portion is collar-shaped and is provided with from described joining portion (118; 218) engagement tabs (118a that interior side direction center extends; 218a), wherein, described engagement tabs (118a; 218a) part reaches described tubular elastomeric body (111; 211) described joint (112; 212) internal pipeline (114; 214) in, for being connected in described external component.
2. connector according to claim 1, wherein, described fixed area (116a) is provided with crosspassage (116c) and overlaps with the proximal end region of the described bar portion (116) of described tubular insert (115), and the described crosspassage (116c) of described fixed area (116a) also extends through the described adjacent portion (117) of described tubular insert (115), the described fixing part (113) of described tubular elastomeric body (111) extends from the described joint (112) of described tubular elastomeric body (111) to occupy described crosspassage (116c) and to fill the described groove be communicated with described crosspassage (116c) of the described bellows wall of described bellows (1), thus end at the position of the distal area (116b) of the described bar portion (116) of described tubular insert (115).
3. connector according to claim 1, wherein, described tubular elastomeric body (211) and described tubular insert (215) are elbows, and the described joining portion (218) of described tubular insert (215) relative to described tubular insert (215) described bar portion (216) at angle.
4. the end connector (110 of a manufacture bellows (1); 210) method, comprises the following steps:
The bellows be made up of plastic material (1) is provided,
Tubular insert (115 is provided; 215), described tubular insert (115; 215) be made up of plastic material and comprise bar portion (116; 216), adjacent portion (117; 217) and joining portion (118; 218), described joining portion (118; 218) be collar-shaped and be provided with crosspassage (118c; 218c) and from described joining portion (118; 218) engagement tabs (118a that interior side direction center extends; 218a),
Mould (M) is provided, described mould (M) as housings close around the end (4) of described bellows (1),
There is provided resin injection device (ID), described resin injection device (ID) has aciculiform structure and partly can be inserted in the described joining portion (118 of described tubular insert; 218) in,
By described tubular insert (115; 215) be inserted in described bellows (1) to make described tubular insert (115; 215) described adjacent portion (117; 217) adjoin with the described end (4) of described bellows (1), described tubular insert (115; 215) described bar portion (116; 216) substantially contact with the bellows wall of described bellows (1),
Described resin injection device (ID) is inserted in described tubular insert (115; 215) described joining portion (118; 218) in, until the distal section (1D2) of described injection device (ID) is bonded on described tubular insert (115; 215) described joining portion (118; 218) in distal area, and described mould (M) is closed around the described end (4) of described bellows (1),
Inject elastic material by described injection device (ID), wherein, described elastic material is through described tubular insert (115; 215) the described crosspassage (118c at described joining portion (218); 218c), embed described tubular insert and described bellows thus,
Wherein, described mould (M) and described injection device (ID) make elastic material described in remaining have predetermined profile, to form the joint (112 of described end connector respectively; 212) internal pipeline (114; 214) and outer surface, described joint is arranged on the outside of described bellows, wherein, and the described joining portion (118 of described tubular insert; 218) described engagement tabs (118a; 218a) part reaches described joint (112; 212) described internal pipeline (114; 214) in.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/912503 | 2010-10-26 | ||
| US12/912,503 US8491014B2 (en) | 2010-10-26 | 2010-10-26 | End connector of a corrugated tube, produced by co-moulding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102454850A CN102454850A (en) | 2012-05-16 |
| CN102454850B true CN102454850B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110329050.0A Active CN102454850B (en) | 2010-10-26 | 2011-10-24 | By the end connector of the bellows of co-molded production |
Country Status (2)
| Country | Link |
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| US (1) | US8491014B2 (en) |
| CN (1) | CN102454850B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8277714B1 (en) * | 2009-11-13 | 2012-10-02 | Mercury Plastics, Inc. | Braid capture overmolding |
| EP2734669B1 (en) * | 2011-07-19 | 2016-04-13 | Koninklijke Philips N.V. | Domestic appliance comprising an actuator |
| US10364811B2 (en) * | 2011-07-19 | 2019-07-30 | Koninklijke Philips N.V. | Domestic appliance comprising an actuator |
| WO2014129911A1 (en) | 2013-02-19 | 2014-08-28 | Fisher & Paykel Healthcare Limited | Apparatus and method for providing gases to a user |
| CN104100796A (en) * | 2014-07-01 | 2014-10-15 | 江苏大力城电气有限公司 | Corrugated expansion joint |
| IT201600092755A1 (en) * | 2016-09-14 | 2018-03-14 | General Cab S R L | TERMINATION CONNECTOR OF AN ELASTICALLY DEFORMABLE CORRUGATED PIPE AND ITS RELATED PRODUCTION METHOD AND METHODS OF ASSEMBLING THE SAME IN THE Aforementioned CORRUGATED PIPE |
| DE102017210663A1 (en) * | 2017-06-23 | 2018-12-27 | Volkswagen Aktiengesellschaft | Arrangement for degassing an electrochemical energy store and pipe connector thereto |
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| EP2112415A1 (en) * | 2008-04-22 | 2009-10-28 | A.E.C. S.R.L. | An end connector of a corrugated tube, produced by co-moulding |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120098253A1 (en) | 2012-04-26 |
| CN102454850A (en) | 2012-05-16 |
| US8491014B2 (en) | 2013-07-23 |
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